A multi-stage composite coal dust removal device and a use method thereof

Abstract

This invention discloses a multi-stage composite coal dust removal device and its usage method, relating to the field of coal dust control technology. The device innovatively adopts a sequential connection structure of "cyclone separation chamber—atomizing dust removal unit—filter assembly," constructing a multi-stage synergistic purification process of "cyclone separation—atomizing adsorption—fine filtration." First, the cyclone separation chamber performs preliminary centrifugal separation of the dust-laden airflow, efficiently removing large-diameter coal dust particles. Then, the atomizing medium sprayed by the atomizing dust removal unit adsorbs medium-diameter coal dust and promotes its agglomeration, laying the foundation for subsequent filtration. Finally, the filter assembly, combined with ultrasonic-assisted technology and secondary atomization, precisely intercepts small-diameter coal dust. This device can achieve graded and efficient purification of coal dust of different particle sizes, effectively solving the technical pain point of incomplete purification in traditional single dust removal methods. Furthermore, the convenient connection structure of each component significantly reduces maintenance and disassembly difficulty, making it suitable for coal dust control needs in various scenarios such as coal mining and transportation.

Description

Technical Field

[0001] This invention relates to the field of coal dust control technology, specifically to a multi-stage composite coal dust removal device and its usage method. Background Technology

[0002] Currently, coal dust control technologies mostly employ single methods such as cyclone dust collectors, bag filters, and spray dust collectors. However, cyclone dust collectors are ineffective at purifying medium and small-sized coal dust, bag filters are prone to filter clogging and have high maintenance costs, and spray dust collectors are affected by atomization and airflow, resulting in low capture rates for small-sized coal dust. All these methods fail to achieve comprehensive and efficient purification of coal dust of different particle sizes. Furthermore, existing coal dust collection devices have complex component connections, making disassembly and assembly inconvenient. Fault maintenance or component replacement is time-consuming and labor-intensive, severely impacting the continuity and efficiency of coal dust control. Therefore, there is an urgent need to develop a coal dust collection device capable of efficiently classifying and purifying coal dust of different particle sizes, with convenient component connections and easy maintenance and disassembly, to solve the aforementioned technical challenges. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-stage composite coal dust removal device and its usage method to solve the problems mentioned in the background art. To solve the above problems, this invention provides the following technical solution: A multi-stage composite coal dust removal device includes a cyclone dust collection cylinder, an atomizing dust removal unit, a filter assembly, and a cyclone separation chamber connected in sequence. The cyclone separator is a circular cavity structure with multiple interfaces of different sizes for connecting atomizing media. This allows the atomizing media to fully mix with the pre-separated dust-laden airflow, adsorbing medium-sized coal dust particles and causing them to agglomerate and grow larger, facilitating subsequent filtration. It is mainly used for preliminary cyclone separation of dust-laden airflow, using centrifugal force to throw large-diameter coal dust particles against the chamber walls, achieving initial dust removal. The atomizing dust removal unit includes a connecting pipe and a cyclone dust collection cylinder. One end of the connecting pipe is connected to the cyclone separation chamber, and the other end is connected to the cyclone dust collection cylinder. The filter assembly includes a mounting frame and multiple filter elements, which are mounted on the mounting frame for fine filtration of the dust-laden airflow after atomization and adsorption, intercepting small-diameter coal dust particles. Simultaneously, the filter assembly is equipped with an ultrasonic air filtration structure and an acoustic mist atomizing spray structure. The ultrasonic air filtration structure uses ultrasonic waves to assist in cleaning coal dust from the surface of the filter elements, while the acoustic mist atomizing spray structure further atomizes the medium, further enhancing the filtration effect. The filter assembly also has a cyclone filtration channel through which the purified airflow is discharged.

[0004] By adopting the above technical solution, the present invention has at least the following beneficial effects: (1) By setting up a cyclone dust collection cylinder, an atomizing dust removal unit, a filter component and a cyclone separation chamber, the present invention performs cyclone separation, atomizing adsorption and fine filtration in sequence, thereby achieving graded purification of coal dust particles of different sizes. Compared with the traditional single dust removal method, the dust removal effect is more comprehensive and efficient, which can effectively reduce the concentration of coal dust, improve the working environment and reduce safety hazards.

[0005] (2) The components of the device are connected by quick snaps, flanges and other convenient connection methods, which facilitates disassembly and maintenance, reduces the difficulty and cost of equipment maintenance, and the multi-specification interface on the cyclone dust collection tube improves the versatility of the device and can be adapted to different atomizing medium supply equipment. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0006] In the diagram: 1. Cyclone dust collection cylinder; 2. Quick-release buckle; 3. Ultrasonic air filter; 4. Acoustic mist atomizing spray; 5. Kaixuans filter; 6. Media filter channel; 7. Cyclone separation chamber; Detailed Implementation

[0007] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings: A multi-stage composite coal dust removal device consists of a cyclone dust collection cylinder 1, an atomizing dust removal unit, a filter assembly, and a cyclone separation chamber 7 connected in series. Its staged dust removal process is as follows: The dust-laden airflow first enters the cyclone separation chamber 7, which has a circular cavity structure and is equipped with inlet interfaces for atomizing media of various sizes, including 4mm, 80mm, 100mm, 6mm, and 3.3mm. The airflow rotates at high speed within the chamber, and large-diameter coal dust particles are rapidly thrown against the chamber wall under centrifugal force, subsequently falling off under the influence of gravity. The airflow reaches the bottom of the chamber, thus completing the initial cyclone separation of large-diameter coal dust. The dust-laden airflow, after initial separation, enters the core component of the atomizing dust removal unit—the cyclone dust collection cylinder 1—through a transition connecting pipe connected by a quick-clamping structure 2. Inside the cylinder, it is fully mixed and in contact with the atomizing medium introduced from a dedicated interface. The atomizing medium droplets encapsulate medium-diameter coal dust particles through surface adsorption, causing them to collide, agglomerate, and grow larger, laying the foundation for subsequent fine filtration. Afterward, the airflow carrying agglomerated particles enters through a flange structure that tightly seals the cyclone dust collection cylinder 1. The connected filter assembly consists of a mounting frame and four filter elements evenly distributed on the frame. During the airflow through the filter elements, small-diameter coal dust particles are efficiently intercepted by the filter element pores, achieving fine purification. At the same time, the ultrasonic air filter structure 3 integrated into the filter assembly continuously releases ultrasonic vibrations to perform high-frequency cleaning of the dust adhering to the surface of the filter elements, effectively preventing filter element clogging and maintaining stable filtration efficiency. Meanwhile, the acoustic mist atomizing spray structure 4 configured on the assembly simultaneously sprays atomized media a second time to replenish the remaining tiny coal dust particles in the airflow, further improving the dust removal effect. Among them, the Kaixuans filter 5, as the internal supporting filter component of the acoustic mist atomizing spray structure 4, can not only enhance the structural stability but also intercept impurities in the atomized media, ensuring the cleanliness of the media to avoid secondary pollution. The media filter channel 6 has a dual function: on the one hand, it serves as a structural component to stabilize the outer shell of the filter assembly; on the other hand, it serves as an auxiliary discharge interface for the purified airflow, ensuring the continuity and stability of the airflow output. Finally, the clean airflow, purified through multiple stages, is smoothly discharged from the media filter channel 6.

Claims

1. A multi-stage composite coal dust removal device, characterized in that, The method includes atomizing dust removal unit, a filter assembly, and a cyclone separator (7) connected in sequence. a. The cyclone separation chamber (7) is a circular cavity structure with multiple interfaces of different specifications on it, which are used to connect the atomizing medium, so that the atomizing medium mixes with the dust-laden airflow after preliminary separation, and adsorbs medium-sized coal dust particles. It is mainly used to perform preliminary cyclone separation on the dust-laden airflow and separate large-sized coal dust particles. b. The atomizing dust removal unit includes a connecting pipe and a cyclone dust collection cylinder (1). One end of the connecting pipe is connected to the cyclone separation chamber (7) via a quick buckle (2), and the other end is connected to the cyclone dust collection cylinder (1). c. The filter assembly includes a mounting frame and multiple filter elements. The multiple filter elements are mounted on the mounting frame for fine filtration of the dust-laden airflow after atomization adsorption, intercepting small-diameter coal dust particles. The filter assembly is provided with an ultrasonic air filter structure (3) and an acoustic mist atomization spray structure (4) to help improve the filtration effect. The filter assembly also has a Kjell filter (5) and a media filter channel (6). The purified airflow is discharged from the media filter channel (6).

2. The multi-stage combined coal dust removal device according to claim 1, characterized in that, The cyclone separation chamber (7) is connected to the connecting pipe by a quick-release buckle structure (2), which facilitates disassembly and maintenance.

3. The multi-stage combined coal dust removal device according to claim 1, characterized in that, The cyclone separator (7) has multiple interfaces with different sizes, such as 4mm, 80mm, 100mm, 6mm, and 3.3mm, which are adapted to different atomizing medium supply equipment.

4. The multi-stage combined coal dust removal device according to claim 1, characterized in that, The number of filter elements is four, which are evenly distributed on the mounting frame.

5. The multi-stage combined coal dust removal device according to claim 1, characterized in that, The mounting bracket of the filter assembly is connected to the cyclone dust collection cylinder (1) via a flange structure.

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